SHOW ALL YOUR WORK USING FORMULAS & SKETCHING/SHADING AREA UNDER DISTRIBUTION CURVE! 1) The average time a subscriber spends reading the Wall Street Journal is 49 minutes. Assume the standard deviation is 16 minutes and the distribution is normal. a) What is the probability a subscriber will spend at most 1 hour reading the Journal? i. Convert 1 hour to a standard normal Z-score. ii. Sketch the normal curve and shade the area underneath that represents the probability a subscriber will spend at most 1 hour reading the Journal. iii. Use a normal probability table and symmetry of the Normal distribution curve to find correct probability. b) What is the probability a subscriber will spend more than 30 minutes reading the Journal? (Show work following the same steps as in part a.)
SHOW ALL YOUR WORK USING FORMULAS & SKETCHING/SHADING AREA UNDER DISTRIBUTION CURVE! 1) The average time a subscriber spends reading the Wall Street Journal is 49 minutes. Assume the standard deviation is 16 minutes and the distribution is normal. a) What is the probability a subscriber will spend at most 1 hour reading the Journal? i. Convert 1 hour to a standard normal Z-score. ii. Sketch the normal curve and shade the area underneath that represents the probability a subscriber will spend at most 1 hour reading the Journal. iii. Use a normal probability table and symmetry of the Normal distribution curve to find correct probability. b) What is the probability a subscriber will spend more than 30 minutes reading the Journal? (Show work following the same steps as in part a.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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Transcribed Image Text:SHOW ALL YOUR WORK USING FORMULAS & SKETCHING/SHADING AREA UNDER
DISTRIBUTION CURVE!
1) The average time a subscriber spends reading the Wall Street Journal is 49 minutes. Assume the
standard deviation is 16 minutes and the distribution is normal.
a) What is the probability a subscriber will spend at most 1 hour reading the Journal?
i. Convert 1 hour to a standard normal Z-score.
ii. Sketch the normal curve and shade the area underneath that represents the probability
a subscriber will spend at most 1 hour reading the Journal.
iii. Use a normal probability table and symmetry of the Normal distribution curve to
find correct probability.
b) What is the probability a subscriber will spend more than 30 minutes reading the Journal?
(Show work following the same steps as in part a.)
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